Calculator



FIG. 1 is a perspective view of the calculator.

FIG. 2 is a front view thereof.

FIG. 3 is a back view thereof.

FIG. 4 is a top view thereof.

FIG. 5 is a bottom view thereof.

FIG. 6 is a open perspective view thereof; and,

FIG. 7 is a bottom open perspective view thereof.

The ornamental design for a calculator, as shown and described.